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Coumarin 343 is a small hydrophilic dye. It cannot penetrate cell membranes by itself. Coumarin 343 is also known as Coumarin 519. Depending on the pH of the medium, coumarin 343 exists in neutral and anionic forms with an excitation peak at 443 nm and an emission peak at 461 nm. It can be excited using a 445 nm laser and a 510/80 nm bandpass filter.

Coumarin 343

Cat# Name Structure M.W. Purity Pricing
AP14693Coumarin 343 acid285.30≥95% Pricing
AP12927Coumarin 343 X carboxylic acid398.45≥ (95%) Pricing
AP12926Coumarin 343 X azide480.56≥ (95%) Pricing
AP12928Coumarin 343 X NHS ester495.53≥95% Pricing

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